HVAC Costs in Illinois

Verified cost ranges across cities in Illinois

Verified by 3 sourcesUpdated May 22, 2026

HVAC Cost Comparison — Illinois

Compare verified cost ranges across cities in Illinois

Cost Comparison — Furnace Installation

Illinois2 sources

Low

$1,657

Typical

$1,657

High

$1,934

Chicago2 sources

Low

$1,717

Typical

$1,717

High

$2,003

Rockford2 sources

Low

$1,527

Typical

$1,527

High

$1,782

Peoria2 sources

Low

$1,512

Typical

$1,512

High

$1,764

Springfield2 sources

Low

$1,537

Typical

$1,537

High

$1,794

Champaign2 sources

Low

$1,536

Typical

$1,536

High

$1,793

Decatur2 sources

Low

$1,465

Typical

$1,465

High

$1,710

Kankakee2 sources

Low

$1,597

Typical

$1,597

High

$1,864

Bloomington2 sources

Low

$1,550

Typical

$1,550

High

$1,809

Davenport2 sources

Low

$1,476

Typical

$1,476

High

$1,723

Cost Comparison — Heat Pump Installation

Illinois2 sources

Low

$4,487

Typical

$4,487

High

$5,236

Chicago2 sources

Low

$4,648

Typical

$4,648

High

$5,424

Rockford2 sources

Low

$4,135

Typical

$4,135

High

$4,825

Peoria2 sources

Low

$4,093

Typical

$4,093

High

$4,777

Springfield2 sources

Low

$4,161

Typical

$4,161

High

$4,856

Champaign2 sources

Low

$4,159

Typical

$4,159

High

$4,854

Decatur2 sources

Low

$3,967

Typical

$3,967

High

$4,630

Kankakee2 sources

Low

$4,325

Typical

$4,325

High

$5,047

Bloomington2 sources

Low

$4,197

Typical

$4,197

High

$4,898

Davenport2 sources

Low

$3,997

Typical

$3,997

High

$4,664

Cost Comparison — Ductwork Installation

Illinois2 sources

Low

$69

Typical

$140

High

$517

Chicago2 sources

Low

$72

Typical

$145

High

$535

Rockford2 sources

Low

$64

Typical

$129

High

$476

Peoria2 sources

Low

$63

Typical

$128

High

$471

Springfield2 sources

Low

$64

Typical

$130

High

$479

Champaign2 sources

Low

$64

Typical

$130

High

$479

Decatur2 sources

Low

$61

Typical

$124

High

$457

Kankakee2 sources

Low

$67

Typical

$135

High

$498

Bloomington2 sources

Low

$65

Typical

$131

High

$483

Davenport2 sources

Low

$62

Typical

$125

High

$460

Cost Comparison — Furnace Repair

Illinois2 sources

Low

$66

Typical

$1,046

High

$2,673

Chicago2 sources

Low

$68

Typical

$1,084

High

$2,769

Rockford2 sources

Low

$61

Typical

$964

High

$2,463

Peoria2 sources

Low

$60

Typical

$955

High

$2,439

Springfield2 sources

Low

$61

Typical

$971

High

$2,479

Champaign2 sources

Low

$61

Typical

$970

High

$2,478

Decatur2 sources

Low

$58

Typical

$925

High

$2,363

Kankakee2 sources

Low

$64

Typical

$1,009

High

$2,577

Bloomington2 sources

Low

$62

Typical

$979

High

$2,500

Davenport2 sources

Low

$59

Typical

$932

High

$2,381

Cost Comparison — Thermostat Installation

Illinois3 sources

Low

$88

Typical

$249

High

$517

Chicago3 sources

Low

$91

Typical

$258

High

$535

Rockford3 sources

Low

$81

Typical

$230

High

$476

Peoria3 sources

Low

$80

Typical

$227

High

$471

Springfield3 sources

Low

$81

Typical

$231

High

$479

Champaign3 sources

Low

$81

Typical

$231

High

$479

Decatur3 sources

Low

$78

Typical

$220

High

$457

Kankakee3 sources

Low

$85

Typical

$240

High

$498

Bloomington3 sources

Low

$82

Typical

$233

High

$483

Davenport3 sources

Low

$78

Typical

$222

High

$460

Cost Comparison — Duct Cleaning

Illinois2 sources

Low

$50

Typical

$1,855

High

$5,000

Chicago2 sources

Low

$52

Typical

$1,922

High

$5,180

Rockford2 sources

Low

$46

Typical

$1,710

High

$4,608

Peoria2 sources

Low

$46

Typical

$1,693

High

$4,562

Springfield2 sources

Low

$46

Typical

$1,721

High

$4,637

Champaign2 sources

Low

$46

Typical

$1,720

High

$4,635

Decatur2 sources

Low

$44

Typical

$1,640

High

$4,421

Kankakee2 sources

Low

$48

Typical

$1,788

High

$4,820

Bloomington2 sources

Low

$47

Typical

$1,735

High

$4,677

Davenport2 sources

Low

$45

Typical

$1,653

High

$4,454

Cost Comparison — Boiler Installation

Illinois2 sources

Low

$3,662

Typical

$3,662

High

$4,274

Chicago2 sources

Low

$3,794

Typical

$3,794

High

$4,427

Rockford2 sources

Low

$3,375

Typical

$3,375

High

$3,939

Peoria2 sources

Low

$3,341

Typical

$3,341

High

$3,899

Springfield2 sources

Low

$3,397

Typical

$3,397

High

$3,964

Champaign2 sources

Low

$3,395

Typical

$3,395

High

$3,962

Decatur2 sources

Low

$3,238

Typical

$3,238

High

$3,779

Kankakee2 sources

Low

$3,530

Typical

$3,530

High

$4,120

Bloomington2 sources

Low

$3,426

Typical

$3,426

High

$3,998

Davenport2 sources

Low

$3,263

Typical

$3,263

High

$3,807

Cost Comparison — Boiler Repair

Illinois2 sources

Low

$75

Typical

$2,249

High

$6,100

Chicago2 sources

Low

$78

Typical

$2,330

High

$6,319

Rockford2 sources

Low

$69

Typical

$2,073

High

$5,621

Peoria2 sources

Low

$68

Typical

$2,052

High

$5,565

Springfield2 sources

Low

$70

Typical

$2,086

High

$5,657

Champaign2 sources

Low

$70

Typical

$2,085

High

$5,655

Decatur2 sources

Low

$66

Typical

$1,989

High

$5,394

Kankakee2 sources

Low

$72

Typical

$2,168

High

$5,880

Bloomington2 sources

Low

$70

Typical

$2,104

High

$5,706

Davenport2 sources

Low

$67

Typical

$2,003

High

$5,434

Cost Comparison — Attic Insulation Installation

Illinois2 sources

Low

$300

Typical

$5,618

High

$15,500

Chicago2 sources

Low

$311

Typical

$5,820

High

$16,056

Rockford2 sources

Low

$276

Typical

$5,177

High

$14,283

Peoria2 sources

Low

$274

Typical

$5,125

High

$14,141

Springfield2 sources

Low

$278

Typical

$5,210

High

$14,375

Champaign2 sources

Low

$278

Typical

$5,208

High

$14,369

Decatur2 sources

Low

$265

Typical

$4,967

High

$13,705

Kankakee2 sources

Low

$289

Typical

$5,415

High

$14,940

Bloomington2 sources

Low

$281

Typical

$5,255

High

$14,499

Davenport2 sources

Low

$267

Typical

$5,004

High

$13,807

Cost Comparison — Radiant Floor Heat Installation

Illinois2 sources

Low

$440

Typical

$445

High

$580

Chicago2 sources

Low

$456

Typical

$461

High

$601

Rockford2 sources

Low

$406

Typical

$410

High

$534

Peoria2 sources

Low

$402

Typical

$406

High

$529

Springfield2 sources

Low

$408

Typical

$413

High

$538

Champaign2 sources

Low

$408

Typical

$412

High

$537

Decatur2 sources

Low

$389

Typical

$393

High

$513

Kankakee2 sources

Low

$424

Typical

$429

High

$559

Bloomington2 sources

Low

$412

Typical

$416

High

$542

Davenport2 sources

Low

$392

Typical

$396

High

$516

All HVAC Services

hvac

Furnace Installation

Supply and installation of a new gas, propane, or electric furnace including flue venting, gas piping, ductwork connections, and thermostat wiring.

Cost data available

hvac

Heat Pump Installation

Installation of an air-source heat pump system for year-round heating and cooling, including lineset, electrical, and refrigerant charging.

Cost data available

hvac

Ductwork Installation

Fabrication and installation of supply and return air duct systems in new or remodeled homes, including registers, grilles, and balancing dampers.

Cost data available

hvac

Furnace Repair

Diagnosis and repair of a non-heating or malfunctioning furnace, including igniter replacement, heat exchanger inspection, and blower motor service.

Cost data available

hvac

Thermostat Installation

Installation or replacement of a programmable or smart Wi-Fi thermostat with C-wire installation if required.

Cost data available

hvac

Duct Cleaning

Mechanical cleaning of supply, return, and branch air ducts using rotary brushes and high-powered vacuums to remove dust, debris, and allergens.

Cost data available

hvac

Boiler Installation

Supply and installation of a hot-water or steam boiler for hydronic heating, including gas piping, venting, expansion tank, and zone valves.

Cost data available

hvac

Boiler Repair

Diagnosis and repair of a faulty boiler, covering pump replacement, pressure vessel issues, zone valve failure, and flue blockages.

Cost data available

hvac

Attic Insulation Installation

Addition of blown-in cellulose or fiberglass insulation in the attic floor to reach recommended R-value and reduce HVAC load.

Cost data available

hvac

Radiant Floor Heat Installation

Installation of in-floor hydronic tubing or electric heating mats under tile or hardwood floors for radiant space heating.

Cost data available